1 //===-- PPC.h - Top-level interface for PowerPC Target ----------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the entry points for global functions defined in the LLVM 11 // PowerPC back-end. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_TARGET_POWERPC_H 16 #define LLVM_TARGET_POWERPC_H 17 18 #include "MCTargetDesc/PPCBaseInfo.h" 19 #include "MCTargetDesc/PPCMCTargetDesc.h" 20 #include <string> 21 22 // GCC #defines PPC on Linux but we use it as our namespace name 23 #undef PPC 24 25 namespace llvm { 26 class PPCTargetMachine; 27 class FunctionPass; 28 class ImmutablePass; 29 class JITCodeEmitter; 30 class MachineInstr; 31 class AsmPrinter; 32 class MCInst; 33 34 FunctionPass *createPPCCTRLoops(); 35 FunctionPass *createPPCBranchSelectionPass(); 36 FunctionPass *createPPCISelDag(PPCTargetMachine &TM); 37 FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM, 38 JITCodeEmitter &MCE); 39 void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI, 40 AsmPrinter &AP, bool isDarwin); 41 42 /// \brief Creates an PPC-specific Target Transformation Info pass. 43 ImmutablePass *createPPCTargetTransformInfoPass(const PPCTargetMachine *TM); 44 45 namespace PPCII { 46 47 /// Target Operand Flag enum. 48 enum TOF { 49 //===------------------------------------------------------------------===// 50 // PPC Specific MachineOperand flags. 51 MO_NO_FLAG, 52 53 /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the 54 /// reference is actually to the "FOO$stub" symbol. This is used for calls 55 /// and jumps to external functions on Tiger and earlier. 56 MO_DARWIN_STUB = 1, 57 58 /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to 59 /// the function's picbase, e.g. lo16(symbol-picbase). 60 MO_PIC_FLAG = 2, 61 62 /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to 63 /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase). 64 MO_NLP_FLAG = 4, 65 66 /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a 67 /// symbol with hidden visibility. This causes a different kind of 68 /// non-lazy-pointer to be generated. 69 MO_NLP_HIDDEN_FLAG = 8, 70 71 /// The next are not flags but distinct values. 72 MO_ACCESS_MASK = 0xf0, 73 74 /// MO_LO16, MO_HA16 - lo16(symbol) and ha16(symbol) 75 MO_LO16 = 1 << 4, 76 MO_HA16 = 2 << 4, 77 78 MO_TPREL16_HA = 3 << 4, 79 MO_TPREL16_LO = 4 << 4, 80 81 /// These values identify relocations on immediates folded 82 /// into memory operations. 83 MO_DTPREL16_LO = 5 << 4, 84 MO_TLSLD16_LO = 6 << 4, 85 MO_TOC16_LO = 7 << 4 86 }; 87 } // end namespace PPCII 88 89 } // end namespace llvm; 90 91 #endif 92
